2312135772 has 24 divisors (see below), whose sum is σ = 5540794896. Its totient is φ = 749881728.

The previous prime is 2312135767. The next prime is 2312135773. The reversal of 2312135772 is 2775312132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312135773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603313 + ... + 2604200.

It is an arithmetic number, because the mean of its divisors is an integer number (230866454).

Almost surely, 2^2312135772 is an apocalyptic number.

It is an amenable number.

2312135772 is an abundant number, since it is smaller than the sum of its proper divisors (3228659124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312135772 is a wasteful number, since it uses less digits than its factorization.

2312135772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207557 (or 5207555 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 2312135772 is about 48084.6729426332. The cubic root of 2312135772 is about 1322.3236871263.

The spelling of 2312135772 in words is "two billion, three hundred twelve million, one hundred thirty-five thousand, seven hundred seventy-two".